In our news and FAQ section, we share current projects, industry developments and practical insights into pumps, mixing and conveying technology. At the same time, you will find answers to frequently asked questions about spare parts, maintenance, design and operation of our systems - compact, comprehensible and straight from the field. This will quickly provide you with the information you need for safe, efficient and reliable operation of your systems.
We were at Suisse Public! This major industry event was a complete success for us: We had the opportunity to engage in numerous interesting conversations and present our practical solutions and services for municipal and public applications to a broad audience of industry professionals. Many thanks to all visitors for their interest!
Rototec will be exhibiting at ILMAC, the leading trade fair for process and laboratory technology, in 2026. Visit us September 23–24, 2026, at the Lausanne Exhibition Center and discover our conveying solutions. Get your free ticket now at rototec.ch/ticket
Rototec will be exhibiting at AGRAMA 2026, the most important Swiss trade fair for agricultural, forestry and municipal technology. Experience us live from November 26 to 30, 2026 at the EXPO site in Bern!
Over 33 Years of Partnership with ARA Worblental
The Worblental wastewater treatment plant has relied on Rototec since 1993—from the very first replacement part to the central thick sludge pump. What began as a single order has grown over the years into an ongoing partnership. Today, the plant dewatered its sludge independently, achieving approximately 30 percent dry matter content and over 27,000 hours of stable operation. This is a plant component without redundancy—which is precisely why it relies on a dependable partner.
Ultra-smooth hummus texture with the Fristam colloid mixer
Same ingredients, new texture: Just how much finer can hummus really be processed? A leading manufacturer put the Fristam colloid mixer (FCM) to the test in a real-world application. The result: The average particle size dropped to 28 µm, coarser particles disappeared completely, and the existing recipe was transformed into a noticeably creamier premium product.
Hydro shield despite blackout
The power is out and a fire is imminent: how reliable is mobile pump technology in an emergency? On the industrial site of the Tela paper mill in Niederbipp, emergency services and Rototec tested exactly that under realistic conditions. The result: up to three building-high water shields could be supplied simultaneously, over several hundred meters, without fixed infrastructure and without electricity.
Lump-free mixing with the Shear Mixer
Lumps in the mix? The Shear Mixer makes the difference. Homogeneous and reproducible results are crucial, especially when mixing powders and pastes. Find out how the Shear Mixer optimizes the mixing process and specifically improves the quality of your mixture. In this way, you create a reliable basis for stable processes and consistently high-quality results.
From the lake to the room - lake thermal energy as a model for success
The use of lake thermal energy is one of Switzerland's greatest untapped energy potentials. Around two gigawatts of usable energy lie dormant in the depths of our lakes - comparable to the output of two nuclear power plants, but clean, renewable and locally available. Together with the Hotel BEATUS in Merligen, Rototec has successfully tapped this potential and implemented a pump system that is unique in Switzerland.
SUMA agitator - The expert in stirring
Agitators and flow generators in wastewater treatment plants are in continuous use. They need to be durable, robust and wear-resistant. The Sargans WWTP has found an optimal solution to massively reduce sludge accumulation in the filtrate water tank. Peter Müller, Operations Manager at Sargans WWTP, reports on the new agitators and answers our questions.
Separation is not crap
Separating the manure is always better for nature and animals. If it is not separated, there are often problems when it is spread. The demand in agriculture is increasing. Andreas Jans is a separator specialist at Rototec AG in Richigen. He talks about why a separator can be of interest to many a farmer or entrepreneur
What energy-saving potential do pumps have?
This fact sheet from Swissmem and the Swiss Federal Office of Energy (SFOE) explains where energy and money can be saved with industrial pumps and how this savings potential is achieved. This is supplemented with simple but important questions and practical tips. Because it's not just about energy, ecology and money - it's also about quality and safe processes.
The Worblental wastewater treatment plant has relied on Rototec since 1993—from the very first replacement part to the central thick sludge pump. What began as a single order has grown over the years into an ongoing partnership. Today, the plant dewatered its sludge independently, achieving approximately 30 percent dry matter content and over 27,000 hours of stable operation. This is a plant component without redundancy—which is precisely why it relies on a dependable partner.
Same ingredients, new texture: Just how much finer can hummus really be processed? A leading manufacturer put the Fristam colloid mixer (FCM) to the test in a real-world application. The result: The average particle size dropped to 28 µm, coarser particles disappeared completely, and the existing recipe was transformed into a noticeably creamier premium product.
The power is out and a fire is imminent: how reliable is mobile pump technology in an emergency? On the industrial site of the Tela paper mill in Niederbipp, emergency services and Rototec tested exactly that under realistic conditions. The result: up to three building-high water shields could be supplied simultaneously, over several hundred meters, without fixed infrastructure and without electricity.
Lumps in the mix? The Shear Mixer makes the difference. Homogeneous and reproducible results are crucial, especially when mixing powders and pastes. Find out how the Shear Mixer optimizes the mixing process and specifically improves the quality of your mixture. In this way, you create a reliable basis for stable processes and consistently high-quality results.
The use of lake thermal energy is one of Switzerland's greatest untapped energy potentials. Around two gigawatts of usable energy lie dormant in the depths of our lakes - comparable to the output of two nuclear power plants, but clean, renewable and locally available. Together with the Hotel BEATUS in Merligen, Rototec has successfully tapped this potential and implemented a pump system that is unique in Switzerland.
Agitators and flow generators in wastewater treatment plants are in continuous use. They need to be durable, robust and wear-resistant. The Sargans WWTP has found an optimal solution to massively reduce sludge accumulation in the filtrate water tank. Peter Müller, Operations Manager at Sargans WWTP, reports on the new agitators and answers our questions.
Separating the manure is always better for nature and animals. If it is not separated, there are often problems when it is spread. The demand in agriculture is increasing. Andreas Jans is a separator specialist at Rototec AG in Richigen. He talks about why a separator can be of interest to many a farmer or entrepreneur
This fact sheet from Swissmem and the Swiss Federal Office of Energy (SFOE) explains where energy and money can be saved with industrial pumps and how this savings potential is achieved. This is supplemented with simple but important questions and practical tips. Because it's not just about energy, ecology and money - it's also about quality and safe processes.
We are an independent Swiss family business that was founded in 1989. We have been supporting our customers with pump technology and service for over 35 years. Our experience in the pump market and the combination of many years of traditional know-how and modern technology characterize our work and our success.
Under the motto "The Power of Flow", we develop sustainable solutions that optimize processes and create real added value. We rely on expertise, mutual appreciation, proximity, long-term partnerships with customers and partners and continuous development. Our passion for pumps drives us and motivates us to support you on your path to success.
We support you from analysis and pump design through to implementation and after-sales service. We advise, supply and operate: from design and delivery of high-quality pumps to maintenance and spare parts supply. Thanks to our well-coordinated team, we create a long-term partnership based on quality, reliability and customized solutions.
Our pump solutions are as diverse as our customers' industries: Food and beverage industry, pharmaceutical, fine chemical and cosmetics industry, waste water and environmental management, planning offices & engineering, industrial processes, agricultural technology as well as safety and public protection. We develop a suitable solution for every application, no matter how individual.
Our range includes rotary lobe, centrifugal, progressive cavity, diaphragm, hose, screw spindle and ring piston pumps. In addition, there are agitators, macerators, separators, mixing and homogenizing systems, gear pumps and industrial mixers. This allows us to cover different flow rates, viscosities and pressures.
You will find us in Richigen near Bern: Luzernstrasse 224c, CH-3078 Richigen. For inquiries we are available by phone at +41 31 838 40 00, via WhatsApp at +41 77 279 08 15 or by e-mail to info@rototec.ch at your disposal. Our team looks forward to getting in touch with you.
Our office is open Monday to Thursday from 07:30-12:00 and 13:00-17:00 and on Fridays from 07:30-12:00 and 13:00-16:30. Goods can be accepted from Monday to Friday from 8:00-12:00 and from 13:00-16:00.
We can support and advise you in German, French, English and Italian.
We are involved in numerous industry associations, including GRESE, KBKV, Well Master Association, Swissgalvanic, VSA, Biomass Suisse and Swissmem. These memberships promote the exchange and further development of our industry.
We are regularly looking for new staff. We publish vacancies in the job area on our website, and we look forward to receiving your application. Unsolicited applications from pump technology specialists are also welcome.
Sustainability is an integral part of our vision. We develop solutions that make processes more efficient and create ecological and economic benefits.
Yes, we regularly present our solutions at industry trade fairs such as Pumps & Valves, Suisse Public, GLUG, AquaPro and Ilmac. Up-to-date information on upcoming trade fairs can be found in the news and FAQ section of our website, via our Newsletter and via our channels on LinkedIn and Instagram.
We start with a thorough analysis of your requirements or your pumped liquid. We then work with you to create a tailor-made pump concept, select the right pump type and support you through to commissioning. Our aim is to achieve an optimum combination of performance and durability.
You can arrange a personal consultation quickly and directly: Call us on, write to us via WhatsApp or e-mail or alternatively use the Contact form. We will contact you as soon as possible to arrange a suitable appointment with you.
Our specialists support you in the design and selection of suitable pumps, carry out technical analyses and can also perform viscosity measurements or material tests on request. Thanks to our experience, we can accurately assess media and processes and develop tailor-made solutions.
Yes, if your system requires a replacement or test pump at short notice, we can provide you with rental pumps for various applications. This allows you to avoid longer downtimes and try out new concepts.
Our pump service ranges from regular maintenance, repairs and overhauls to mechanical conversions and adjustments. We overhaul wearing parts, ensure optimum settings and check all components so that your pumps work reliably. We are on the road for our customers throughout Switzerland or we can receive your pumps at our premises in Richigen near Bern and restore them to optimum operating condition.
The intervals depend on the application and the pump type. Regular maintenance is important to avoid breakdowns and maintain efficiency. We will be happy to advise you on suitable maintenance cycles and take care of the planning for you.
Yes, our team carries out repairs and complete overhauls, including mechanical adjustments. We use original spare parts and check all components for functionality and wear.
We recondition stainless steel rotors if their condition permits. Regenerating used stators is generally not economically viable. However, we will be happy to assess the situation for you individually.
Thanks to our long-standing cooperation with Manufacturerswe can supply spare parts for all pump components. These include rotors, stators, mechanical seals, joints, screws and drive shafts. We have many frequently used parts in stock in Richigen and can provide them quickly.
Yes, we maintain an extensive stock to ensure high availability and get your pumps back into operation with minimal disruption.
The delivery time depends on whether we have the required part in stock. Our priority is to supply as quickly as possible. Customers always receive the earliest possible delivery date from us.
We ship our goods with reliable and economical forwarding agents. We usually send parcels with DPD or Swiss Post. On request, it is also possible to collect the goods yourself by prior arrangement.
Clogging is often caused by fibrous or long-particle solids in the pumped liquid. To avoid or significantly reduce these, we recommend the use of an upstream shredding system. Börger offers tried and tested solutions with systems such as the Unihacker, the Multichopper or the Rotorrake. We would be happy to work with you to determine which solution is best suited to your application.
We will also find the right solution for you if space is limited. The design of a pump can be made much more compact with a bevel gear motor. Rotary lobe pumps and progressive cavity pumps can also be wall-mounted and therefore require less floor space. We will be happy to advise you on which design is best suited to your installation situation.
There can be various reasons for an insufficient delivery rate. It is often due to worn components, which means that the necessary sealing is no longer fully in place. A pump that is not optimally designed can also be the cause, for example if the back pressure is too high, the flow rate is too high or the medium is unsuitable. We will be happy to support you in analyzing the cause and help you find the right solution for reliable operation.
We measure the viscosity of your medium and provide you with a sound basis for pump selection. To do this, we need approx. 0.5 l of your medium in a suitable, safe container.
Set the trigger temperature to approx. 10 °C above the operating temperature of your medium. Make sure that the maximum permissible temperature of the pump is not exceeded.
